Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Thursday, July 9, 2026
The tide is currently rising in Bay Saint Louis, MS.
Next low tide (tomorrow) : 7:52 pm (-0.2 ft)
Next high tide (tomorrow) : in 11h 36m at 7:38 am (2.1 ft)
Sunset today : 8:02 pm
Sunrise tomorrow : 6:02 am
Moon phase : Waning Crescent (29% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Feb 1992

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:481.27:44-0.76:485:33New Moon1Sat
2Sun10:361.18:06-0.76:475:34New Moon2Sun
3Mon11:191.08:24-0.66:475:35New Moon3Mon
4Tue11:580.98:37-0.46:465:36New Moon4Tue
5Wed4:390.48:39-0.37:380.36:455:36New Moon5Wed
6Thu12:350.73:460.58:30-0.18:430.26:455:37Waxing Crescent6Thu
7Fri1:110.52:430.68:180.09:470.16:445:38Waxing Crescent7Fri
8Sat1:440.22:460.87:560.16:435:39Waxing Crescent8Sat
9Sun3:091.03:570.06:425:40Waxing Crescent9Sun
10Mon3:441.23:46-0.26:425:41First Quarter10Mon
11Tue4:301.34:23-0.46:415:41First Quarter11Tue
12Wed5:251.45:07-0.66:405:42First Quarter12Wed
13Thu6:291.55:52-0.86:395:43Waxing Gibbous13Thu
14Fri7:411.56:35-0.96:385:44Waxing Gibbous14Fri
15Sat8:561.57:14-1.06:375:45Waxing Gibbous15Sat
16Sun10:041.47:46-0.96:365:45Full Moon16Sun
17Mon11:051.28:10-0.66:365:46Full Moon17Mon
18Tue4:210.48:22-0.36:220.46:355:47Full Moon18Tue
19Wed3:550.58:240.07:540.26:345:48Full Moon19Wed
20Thu12:530.61:060.78:170.29:100.16:335:49Waning Gibbous20Thu
21Fri1:181.010:32-0.16:325:49Waning Gibbous21Fri
22Sat1:511.26:315:50Waning Gibbous22Sat
23Sun2:331.42:48-0.26:305:51Third Quarter23Sun
24Mon3:191.53:45-0.36:295:52Third Quarter24Mon
25Tue4:121.54:33-0.46:285:52Third Quarter25Tue
26Wed5:091.45:16-0.46:275:53Third Quarter26Wed
27Thu6:111.45:51-0.56:255:54Waning Crescent27Thu
28Fri7:211.36:20-0.46:245:54Waning Crescent28Fri
29Sat8:331.26:43-0.46:235:55Waning Crescent29Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8747437)

Common Questions About Bay Saint Louis, MS Tides

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What time does the tide turn (slack tide) in Bay Saint Louis, MS today?

Slack tide in Bay Saint Louis, MS is approximately 1:45 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Bay Saint Louis, MS?

Bay Saint Louis, MS is currently in a transitional phase. Tonight's moon is 29% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are shifting between spring and neap.

What datum are Bay Saint Louis, MS tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Bay Saint Louis, MS?

Tide predictions for Bay Saint Louis, MS come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Bay Saint Louis, MS?

Tide data for Bay Saint Louis, MS is sourced from NOAA Station #8747437. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8747437.

What is the moon phase in Bay Saint Louis, MS tonight?

Tonight the moon over Bay Saint Louis, MS is Waning Crescent (29% illuminated). This places Bay Saint Louis, MS in a transitional tide cycle, so tidal ranges are shifting between spring and neap this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA